CN2188066Y

CN2188066Y - Tricycle

Info

Publication number: CN2188066Y
Application number: CN94211509U
Authority: CN
Inventors: 张长弓
Original assignee: Individual
Current assignee: Individual
Priority date: 1994-05-12
Filing date: 1994-05-12
Publication date: 1995-01-25
Anticipated expiration: 2004-05-12

Abstract

The utility model relates to a horizontal three-wheel bicycle. A front wheel is driven by the engaging mechanism of a gear. A rear wheel is steered by a steering wheel through a crank rocker mechanism driven by the gear. A frame is formed into a space frame structure whose both sides are symmetrical, and the frame can be formed into a triangle when looking downwards. Two rear wheels have no common shaft. An upswept frame which is arranged between the front wheel and the rear wheels is provided witha fixed sofa type chair. The utility model is the serial product of a combined horizontal quadricycle, but the utility model is lighter and more flexible than the quadricycle, and the steering is in conformity with the people.

Description

Tricycle

The utility model relates to the land bicycle.Be the series of products of the design people's 93230498.2 compound type four-wheel horizontal bicycle utility model patents.

Bicycle is everyone the most general vehicle of Chinese.It is moved by two-wheeled, and back-wheel drive is used one group of chain sprocket drive.Step the foot-operated driving chain transmission that the moves in a circle tired present situation that leichts fallen D/A in order to change the people's both feet of riding.Make simultaneously that the people that rides feels comfortably cool, safety.So designed the four-wheel horizontal bicycle.Think that by the reality use it has certain limitation.At first get two people and together use, the occasion of application gets rather spacious.Next is by rear-axle steering, in case of emergency, because habituation reaction mistakes one's bearings easily.

In view of this present situation, the purpose of this utility model is that straight line is stepped the bicycle that foot-operated gear transmission drives front-wheel, makes it adapt to different application scenarios, select for people, change steering hardware, make turning to of steering hardware consistent, keep people's normal custom with the actual steering of bicycle.

Overall plan of the present utility model is such: the advantage of having inherited compound type four-wheel horizontal bicycle utility model patent: f-w-d, and foot-operated with the gear engagement mechanism linear drives.Make upswept frame into left-right symmetric formula space frame structure.Handsome in appearance, firm light.Handling maneuver adopts bearing circle, gear drive crank-rocker mechanism.Make the cyclist enjoy the enjoyment of driving car.Specifically be two upswept frames, distribute about shape one-tenth in full accord, be connected the joint captive joint with front-wheel, captive joint with the seat tube of suit on the back vent of trailing wheel, left curved shape frame and revolver seat tube, right segmental support and right wheel seat tube, affixed two transverse tubes of while are overlooked triangularity on the seat tube of the left and right sides.Article two, also the left-right symmetric distribution is affixed with the front-wheel chain stay for hog frame, is fixed on the seat tube of the left and right sides about dividing again with trailing wheel.See it is a framework so from the side, overlooking or looking up all is framework, becomes a space framework.Bearing circle is installed on the upswept frame, bearing circle drives crank rocking beam by pair of engaged gears, crank is just on gear, fork is hinged on the vehicle frame, by trailing wheel of straight-arm pulling, because of two trailing wheels do not have a common axle, the affixed left and right sides, left and right sides back vent upper end rocking arm, by the hinged left and right sides of pipe link rocking arm, two trailing wheels are fused to be turned to.Be suspended in a hinged pull bar on the big gear wheel on the vehicle frame, gear axis to hinge-point promptly is a crank like this.Practical reliable with this version.Two trailing wheel disalignments have guaranteed to turn to flexibly, and turn radius is little.

By diagram the utility model is done further visualization explanation

Fig. 1, three-wheel horizontal bicycle structural representation

Fig. 2, three-wheel horizontal bicycle plan structure scheme drawing

Fig. 3, three-wheel horizontal bicycle drive mechanism scheme drawing

The A-A cutaway view of Fig. 4, drive mechanism

Fig. 5, steering structure scheme drawing

Drawing explanation: 1, front-wheel, 2, right threading, 3, gear cover, 4, left branching rod, 5, front mudguard, 6, connect joint, 7, vehicle frame, 8, the moving bar, 9, drive link, 10, the drive link sleeve pipe, 11, bearing circle, 12, seat, 13, left side rocking bar, 14, left side seat tube, 15, brake, 16, about the fork, 17, left rear wheel, 18, back fender, 19, straight-arm, 20, pull bar, 21, the Large Gear Shaft During sleeve pipe, 22, big gear wheel, 23, connecting panel, 24, gimbal coupling, 25, left threading, 26, chain stay, 27, right pole, 28, the pinion shaft sleeve pipe, 29, miniature gears, 30, left side flywheel gear, 31, left side driven wheel, 32, the Left Drive gear, 33, left angular wheel, 34, middle finishing bevel gear cuter, 35, right finishing bevel gear cuter, 36, right transmission gear, 37, right driven wheel, 38, right flywheel gear, 39, back mirror, 40, fork, 41, union lever, 42, right rocking bar, 43, right seat tube, 44, right back fork, 45, off hind wheel, 46, right back fender, 47, the turning arm, 48, transverse tube.

Graphic structure also is the utility model the simplest a kind of most typical structure, thereby is described further as embodiment again:

Still f-w-d, rear-axle steering that the three-wheel horizontal bicycle adopts, f-w-d adopts gear engagement mechanism, each flywheel gear on the wheel shaft of front-wheel (1), both sides, left side flywheel gear (30) and right flywheel gear (38), be exactly the flywheel of prior art, change the sprocket wheel of outside into gear.When advancing and front-wheel (1) synchronous, can gear idle running when change the back.Left and right sides pole (4) (27) one ends are contained on the wheel shaft of front-wheel (1), and an end is associated in and connects on the joint (6), has also played front fork simultaneously.Transmission gear all is contained on the pole, supports with bearing.And the left and right sides is identical, and driven wheel (31) (37) and foot-operated (25) (2) separately are rigidly connected, and the foot-operated position of both sides is mutually 90 degree.Driven wheel (31) (37) and flywheel gear (30) (38) engagement, because of two gear diameters differ greatly, driven wheel changes an angle just can make ring gear move in a circle, and front-wheel (1) is also just in company with synchronously rotating.Two driven wheels mesh with transmission gear (32) (36) about each again, and its coaxial left and right conical gear (33) (35) all meshes with being fixed on the Intermediate bevel gears (34) that is connected on the joint (6) respectively, and Intermediate bevel gears has only one.Gearing same direction of movement in the left and right sides is opposite like this, and what just can constitute the left and right sides rides one past one again, and front-wheel advances continuously.Vehicle frame (7) is arc, and front end is welded on and connects on the joint (6), and the rear end is welded on the seat tube (14) (43), and seat tube divides left seat tube (14), the right car folder of seat standpipe (43), and planform is identical.Tricycle, two trailing wheels do not have a common axle.With two back vents, the bicycle front fork of back vent and prior art is similar, and seat tube (14) (43) is enclosed within above the back vent, cooperated by ball between seat tube and the back vent, thereby back vent can rotate in seat tube flexibly.The affixed left rocking bar in the upper end of left back fork (16) (13), right back fork (44) upper end affixed right rocking bar (42) is fused it by pipe link (41), and making left and right sides back vent drive left and right sides trailing wheel can interlock.Can make car load flexible when turning like this, and turn radius is little.Be welded in respectively on the seat tube that is enclosed within on the back vent of the left and right sides about upswept frame.The hog frame rear end also is welded in the seat tube that is enclosed within on the back vent about respectively, and two transverse tubes of welding on the seat tube of the left and right sides are strengthened rigidity simultaneously.Support two trailing wheels with triangle frame.Front end is fixed on the chain stay (26) of front-wheel.Side-looking, overlook still that backsight all is crash-resistant rigidity space framework, front-wheel (1) and two trailing wheels (17) (45) do not need other support, and car load is light, and is firm.Above seat (12) is placed in.Bearing circle also is installed on the vehicle frame, use the V-arrangement card of bicycle special use that vehicle frame (7) is connected with drive link sleeve pipe (10), bearing circle (11) fuses with drive link (9), and it rotates in drive link sleeve pipe (10) flexibly, and sleeve pipe is to be cooperated by ball with bar.In the position that drive link (9) stretches out, be welded with connecting panel (23) under the vehicle frame, settle Large Gear Shaft During sleeve pipe (21) and pinion shaft sleeve pipe (28) on it.Big gear wheel of adorning respectively in it (22) and the miniature gears (29) that meshes together.Miniature gears (29) is bound up by the drive link (9) of gimbal coupling (24) with bearing circle.Go up hinged pull bar (20), the fork of ining succession (40), straight-arm (19) turning arm (47) in big gear wheel (22).Be hinged on the vehicle frame in the middle of the fork (40), the turning arm is associated in the wheel shaft of left rear wheel (17).When bearing circle (11) rotates, miniature gears (29) changes in the same way with bearing circle, big gear wheel (22) is reverse commentaries on classics, by pull bar (20), the torsional direction of the acting in opposition left rear wheel of fork (40) is identical with big gear wheel (22), opposite with bearing circle (11) direction, because of being rear-axle steering, car load is to the direction turning driving of bearing circle (11) appointment.The utility model has reached improvement design-calculated purpose by implementing proof.It is convenient that the user feels, selectively leeway particularly turns to the custom that meets people, and the user has had the sense of security.Other auxiliaries such as moving bar (8), brake (15), front and back fender (5) (18) (46), back mirrors (39) etc. all repeat no more with prior art is similar.

Claims

1, a kind ofly collapses with gear engagement mechanism linear drives pin by f-w-d, rear-axle steering, fixing three-wheel horizontal bicycle in the upswept frame nadir with the backrest couch, it is characterized in that rear-axle steering manipulation employing bearing circle gear drive crank-rocker mechanism, upswept frame becomes the firm light space frame structure of left-right symmetric formula.

2, the three-wheel horizontal bicycle of narrating according to claim 1, it is characterized in that it is that bearing circle drives crank-rocker mechanism by pair of engaged gears that rear-axle steering is handled employing bearing circle gear drive crank-rocker mechanism, crank is located on the gear, fork is hinged on the vehicle frame, by trailing wheel of straight-arm pulling, two trailing wheel disalignments, with pipe link that the left and right sides rocking arm of left and right sides back vent upper end is hinged, two trailing wheels are fused.

3, the three-wheel horizontal bicycle of narrating according to claim 1, it is characterized in that the firm light space frame structure of left-right symmetric formula is that two upswept frame shapes are in full accord, become left-right symmetric to distribute, be connected the joint captive joint with front-wheel, captive joint with the seat tube that trailing wheel is sleeved on the back vent, left curved shape frame and revolver seat tube, right segmental support and right wheel seat tube, affixed two transverse tubes of while on the seat tube of the left and right sides, overlook triangularity, article two, hog frame also left-right symmetric distribute, affixed with the front-wheel chain stay, be fixed on the seat tube of the left and right sides about dividing again with trailing wheel.